Subject:
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Re: Why quads? Re: L(EGO)Draw parts - 4th batch
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Newsgroups:
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lugnet.cad.dev.org.ldraw
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Date:
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Fri, 17 Sep 2010 08:46:05 GMT
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Viewed:
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26245 times
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> I realise this is largely off-topic to the oriinal thread but I've always
> been curious why the use of quads is encouraged when just about every other
> format and rendering engine sticks to triangles. So the part author merges
> triangles into quads and then whatever software looks at the part undoes the
> merge.
Good question!
+ reduces file size by 50%
+ 50% less vertices to adjust when building "by hand"
+ triangles plays havoc with smooth shading (the helical artefact that can be
seen here http://www.holly-wood.it/tmp/LEGODraw/m50986.png disappears when
triangles are converted to quads. But I guess it could be solved at renderer
level too.
- More complexity in many tools
- introduces coplanarity issues
Philo
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Message has 1 Reply:
Message is in Reply To:
 | | Why quads? Re: L(EGO)Draw parts - 4th batch
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| (...) I realise this is largely off-topic to the oriinal thread but I've always been curious why the use of quads is encouraged when just about every other format and rendering engine sticks to triangles. So the part author merges triangles into (...) (14 years ago, 16-Sep-10, to lugnet.cad.dev.org.ldraw, FTX)
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